There are various ways swimming pools lose heat, with evaporation being the most significant source of energy loss. For an outside pool, how quickly the water evaporates depends on wind speed at the pool’s surface, humidity and air temperature.
Although there are no environmental complications in an indoor pool an indoor pool, it is, however, likely to lose an enormous amount of heat due to evaporation. It even needs room ventilation to regulate humidity owing to the vast amount of evaporation. Pool Cover Buying Guide